LAUNCHING OF BIOINNOVATE PROGRAMME

PROJECT 5: INTEGRATED PROCESS FOR SUSTAINABLE AGROPROCESS WASTE TREATMENT AND CLIMATE CHANGE MITIGATION IN EASTERN AFRICA

K.N. Njau, Joseph Kyambadde and Mekibib David Dawit

Bio-Innovate Launch, ILRI, Nairobi, 16 March 2011

Participating InstitutionsWSP & Constructed Wetland Research and Development GroupUniversity of Dar es SalaamP.O. Box 35131Dar es Salaam.

Department of BiochemistryMakerere UniversityP.O. Box 7062 Kampala

Environmental Science Programme,College of Natural Sciences, Addis Ababa University,P O Box 1176, Addis Ababa

National University of Rwanda, Faculty of Science,Department of ChemistryRwanda

Collaborating InstitutionsSITE OWNERS1. Banana Investments Ltd, P.O. Box 10123, Arusha, Tanzania 2. Modjo Tannery, P.O. Box 3, Addis Ababa, Ethiopia3. Bassajjabalaba Hides and Skins (City Abattoir), P.O. Box

20000, Kampala, Uganda

IMPLEMENTING PARTNERS4. AGENDA/ENVICON – Tanzania5. WWS Design and Development -Tanzania6. Centre for Research in Energy and Energy Conservation

(CREEC) - Uganda7. Forum for Environment, and Environment and

Development Action (ENDA) – Ethiopia8. AKUT Burkard and Partner, Germany9. CAMARTECH

Consortium Management Principal Investigator (Tanzania): Dr. Karoli N. Njau Tel. +255-22-2410368 Mobile: +255 754 296 993 Email: knjau30@yahoo.com  Co- Principal Investigator (Uganda): Dr. Joseph Kyambadde Tel: +256 414 530555 Mob: +256 772 510824 Email: joseph.kyambadde@gmail.com  Co- Principal Investigator (Ethiopia): Dr. Mekibib David

Dawit Telephone: +251 (0) 116551910 mekibib1@hotmail.com  Co- Principal Investigator (Rwanda): Dr. Nsengimana

Hermogène Cell phone: +25008416745 E-mail: nhermo@yahoo.fr,

Budget and Distribution

Project Budget and duration:USD 1,199,258 over three years (2011-2013)

WSP & Constructed Wetland USD 404,084

Makerere University USD 449,724 University of Addis Ababa USD

345,450

Banana Investment Contributing USD 150,000

The Project – City AbattoirThe abattoir has a slaughter produces an average

of 400 m3 per day polluted wastewater effluent (COD > 10,000 mg/L) significantly contributing to nutrient enrichment and oxygen depletion of Lake Victoria.

City Abattoir operations in Uganda require large volumes of hot water to maintain high levels of hygiene which translates into high costs of electricity.

The abattoir also uses large quantities of charcoal to prepare meals for over 2000 persons visiting or working at the abattoir on a daily basis.

Recovery of biogas from slaughterhouse wastewater for local consumption will reduce charcoal usage by about 80%

Modjo TanneriesThe Modjo tannery for example

generates 4 500 m3/day of wastewater with a COD content of 10 000 mg/L which is discharged to Modjo river feeding into Lake Koka (Ethiopia).

Downstream communities use this lake for irrigation and other domestic activities and this poses a health risk to these communities.

Banana Investments LtdIn Tanzania, Banana Investments Ltd

processes 25 metric tons of peeled ripe bananas per week to produce wine in a process that produces about 400 m3 of high-strength wastewater (BOD, 3000 mg/L) per day.

The enterprise unsustainably uses 3600 cubic meters of wood fuel per year costing the company USD 50,000 per annum

The Project - InnovationThe current wastewater treatment processes do not

integrate pollution reduction, energy and nutrient recovery.

In this project an innovative strategy and incentive to achieve sustainable waste treatment and environmental clean-up is proposed involving

anaerobic bio-conversion of agro-process wastes to produce biogas and nutrient-rich slurry,

aerobic oxidation of anaerobic digestate to reduce organic and nutrient loading and generate nutrient-rich sludge;

use of effluent from anaerobic digester and aerobic SBRs to cultivate vegetables, flowers and animal fodder in hydroponic systems and

finally polishing of this effluent in constructed wetlands and using the treated water for farming .

Innovation Pathway

Agro-processing Plant

Agro-processing Plant

Anaerobic digester (UG, ET, TZ)

Anaerobic digester (UG, ET, TZ)

Biogas, slurry fertilizer (UG, TZ)

Biogas, slurry fertilizer (UG, TZ)

Hydroponic system (UG)

Hydroponic system (UG)

Crops, Flowers (UG)

Crops, Flowers (UG)

Treatment in Aerobic SBR(UG, ET)

Treatment in Aerobic SBR(UG, ET)

Sludge fertilizer (UG)

Sludge fertilizer (UG)

Treatment in CW (UG, ET,

TZ)

Treatment in CW (UG, ET,

TZ)

Disinfection (UG, ET)Disinfection (UG, ET)

Treated water back for washing (UG, ET)

Treated water back for washing (UG, ET)

Treated water for irrigation (TZ)

Treated water for irrigation (TZ)

Process

Water

Expected results of the interventionBetter treatment of agro-process

wastewaters (slaughterhouse, tannery and Banana wine processing wastewaters)

Recovery of useable by-products such as biogas, bio-fertilizers, and water

Agricultural products (crops /vegetables, flowers, animal feed/pasture grass)

Reduction of GHG from agroprocessing

Incentive for treatment

Project Goal

Contribute to climate change mitigation, environmental sustainability, and agricultural development in Eastern Africa through integrated waste management innovation systems

Project ObjectivesObjective # 1: Strengthen capacity to

sustainably manage agro-process wastewater in Eastern Africa by 2013

Objective # 2: Develop and optimize innovative wastewater treatment processes integrating biogas production and water/nutrient reuse for enhanced industrial and agricultural productivity in Eastern Africa by 2013

Objective # 3: Evaluate and disseminate the economic, environmental and social benefits of the integrated wastewater treatment bioprocesses by end of 2013

Project Outputs and Performance Indicator

1. An environmental innovation consortium II strengthened and supported to generate and use technologies for sustainable management of agro-process wastewater in E. Africa

◦ Number of human resource with skills and knowledge to operate and maintain the integrated process in partner countries by the end of 2013 (Baseline is needed)

◦ At least three innovative integrated technologies developed and operational by 2013

Project Outputs and Performance Indicator cont..

2. Integrated and optimized bioprocesses comprising wastewater treatment, biogas production and water/nutrient reuse installed and operational in Eastern Africa

◦ At least three integrated technologies installed lead to 90% decrease in pollution by 2013 at partner agro-processing locations in Eastern Africa

3. Cost-benefit analysis reports of the integrated bioprocesses for the three project subcomponents produced

◦ Number of agro-processing industries, NWSCs, municipalities and regulatory agencies (NEMAs) and S&T Councils/Commissions in Eastern Africa using the report increases by 2014

◦ Number of financial institutions willing to fund waste management investments

Project Outputs and Performance Indicator cont..

4. Environmental and social benefits analysis reports of the integrated bioprocesses for the three project subcomponents produced

◦ Number of industries and environmental regulatory agencies (NEMAs WBO) using the report by 2015

◦  Number of financial institutions willing to fund waste management investments

Planning for 2011Consortium Planning MeetingStudent & Staff RecruitmentBaseline /Feasibility studies

◦Land profile, soils, substrate◦Geotechnical surveys◦Water/organic fertilizer use options◦Socio and environmental baseline◦Current wastewater management regime◦Waste characterization (quality and quantity)◦Material flow◦Water and energy usage

System DesignDetailed engineering design

◦Pretreatment ◦Biogas system◦CW system◦Sludge drying and processing◦Irrigation system◦Procurement of contractors

System Establishment◦Pretreatment ◦Biogas system◦CW system◦Sludge drying and processing◦Irrigation system

ENDThank

You